Sonho de um Carnaval

Recording by Chico Buarque.

Recording identifiers

ISRC
BRSGL6600012
CopyrightID (CopyrightChains transaction hash)
0xa899889e22d7682b403a1fb12f35f2eafd623cc0933fad2cd44f6f154b264542
Copyright registration time
2026-06-18T17:12:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:0f24e92ade221efdc522551cd693cd9ec4870ed8c9f7f5f3a9ae51506280a760

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.